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The Scientific Sections
1298
T he Journal of the American D ental Association
THE SCIENTIFIC SECTIONS T U E SD A Y , A U G U S T 7 O PER A TIV E D E N T IS T R Y , M A T ER IA M ED IC A A N D T H E R A P E U T IC S (L in coln H a ll A , St. P a u l A u d ito riu m . A ll su bsequ en t m eetin g s ’w ill be h eld in th is room .)
OFFICERS OF SECTION John C. Lupton, C h airm an .. .Cleveland, Ohio E. Bruce Clark, Vice C hairm an.................... ..................................................Uniontown, Pa. Ralph R. Byrnes, Secretary.......... Atlanta, Ga. 2:30 to 5 p.m . “Value of Routine Radiodontic Examinations” By Clarence O. Sim pson... .St. Louis, Mo. Discussed by Vern D. Irw in ....................Duluth, Minn. Louis M. C ruttenden........ St. Paul, Minn. “Rationalization of Dental Therapeutics and M ateria Medica” By U. Garfield Rickert.Ann Arbor,.Mich. Discussed by Samuel M. G ordon................. Chicago, 111. J. R. Blayney........................... Chicago, 111. “Present Trends in Operative Procedure and T heir Possible Influence on Dental Educa tion” By A rthur T . Rowe..........New York City FULL D E N T U R E PR O ST H ESIS (Stem H a ll, S t. P a u l A u d ito riu m . A l l su bse qu en t m eetin g s w i l l be h eld in th is room .)
OFFICERS OF SECTION Bert L. Hooper, C hairm an........ Lincoln, Nebr. Harold L. H arris, Vice C hairm an................ ..................................................St. Paul, Minn. W alter H. W right, Secretary........................ ..............................................Wilkinsburg, Pa. 2 to 5 p. m. “Problem of Establishing Centric Relation; Its Importance and Solution” By I. Lester F urnas......... Cleveland, Ohio “Immediate Duplicate Denture Service” By Fred D. M iller................Altoona, Pa. “Surgical Problems as an Aid to More Effi cient Service with Prosthetic Dentures” By V. H. K azanjian............... Boston, Mass.
“Practical Occlusion as Applied to Full Den ture Construction” By John B. L aD ue..................Chicago, 111. PA R T IA L D EN T U R E PR O ST H ESIS (T h e a te r sta g e , S t. P a u l A u d ito riu m . A l l su b sequent m eetin gs w i ll be h eld in th is room .)
OFFICERS OF SECTION Ralph C. Cooley, C h airm an .. .Houston, Texas Theodore W . Maves, Vice C hairm an.......... ................................................ Cleveland, Ohio Herbert E. King, Secretary........ Omaha, Nebr. 2 to 5 p. m. “Some T hings W e Should Not Do” By George Wood Clapp. .New York City “M anipulation of Dental Porcelain” By E. Bruce C lark........... Uniontown, Pa. “The Embrasure-Saddle C lasp; Its Principle and Design” By M. M. De V an........... Philadelphia, Pa. O RA L SURGERY, E X O D O N T IA A N D A N E ST H E SIA (A u d ito riu m T h eater. A l l subsequ en t m eet in gs w i l l be h eld in this room .)
OFFICERS OF SECTION Frank W . Rounds, C h airm an .. .Boston, Mass. H arry Bear, Vice C h airm an .. .Richmond, Va. E. W . Browning, Secretary.......................... ...................................... Salt Lake City, Utah 2 to 5 p. m. “Exodontia Relevant to the General Prac titioner” By A. P. W illiam s............Louisville, Ky. “Removal of the M andibular T h ird M olar” By George B. W in ter..........St. Louis, Mo. O R T H O D O N T IA (L in coln H a ll B , St. P a u l A u d ito riu m . A ll subsequ en t m eetin gs w i ll be h eld in th is room .)
OFFICERS OF SECTION H enry F. Hoffman, Chairm an. .Denver, Colo. O. W. Brandhorst, Vice Chairm an.............. ....................................................St. Louis, Mo. Joseph E. Johnson, Secretary. .Louisville, Ky.
1299
T h e S t. P a u l Session 2 to 5 p. m.
“ Trend of Orthodontics” By Abram Hoffman............ Chicago, 111. “ Complete Records: The Unseen Director in Orthodontic Practice” By P. J. Murphy................ Dallas, Texas “Economic Advantages to the General Prac titioner from an Altruistic Concept of Or thodontics” By R. H. Miller................ St. Louis, Mo.
M O U T H H Y G IE N E A N D PR EV E N T IV E D E N T IS T R Y (R a m se y H a ll B , St. P a u l A u d ito r iu m . A l l su bsequ en t m eetin gs ’w ill be h eld in th is room .)
OFFICERS OF SECTION Walter C. McBride, Chairman.Detroit, Mich. L. W. Morrey, Vice Chairman.. .Chicago, 111. Ernest A. Branch, Secretary.. .Raleigh, N. C. 2:30 to 5 p. m. Public Health Symposium “ State Public Health Program” By N. Talley Ballou....... Richmond, Va. Richard C. Leonard. .Baltimore, Md. “ City Health Program” By E. H. Jones...............Cincinnati, Ohio “ Community Health Program” By Emory W. Morris.Battle Creek, Mich. “Dental Health Education” By C. J. Hollister............ Harrisburg, Pa. H IS T O L O G Y , PH Y SIO L O G Y , P A T H O L O GY, B A C TER IO LO G Y , A N D C H E M ISTR Y (R E SEA R C H ) ( M e z za n in e F oyer, St. P a u l A u d ito riu m . A l l su bsequ en t m eetin gs w i l l be h eld in th is room .)
OFFICERS OF SECTION Paul C. Kitchin, Chairman. .Columbus, Ohio Lake and woods near St. Paul. P E R IO D O N T IA (R a m sey H a ll A , St. P a u l A u d ito r iu m . A l l su bsequ en t m eetin g s 'w ill be h eld in th is room .)
OFFICERS OF SECTION M. Monte Bettman, Chairman. .Portland, Ore. Grace Rogers Spalding, Vice Chairman.. . . ...................................... Birmingham, Mich. Walter Leabo, Secretary........... Shreveport, La. 2:30 to 5 p. m. “Importance of the Early Recognition and Treatment of Periodontoclasia” By Robert L. Dement........... Atlanta, Ga. “A Program for Postgraduate Instruction in Periodontia” By Arthur H. Merritt....... New York City “ Subgingival Treatment in Oral Surgery” By A. B. Vastine.............. Bloomsburg, Pa.
Rufus W. Leigh, Vice Chairman................. ................................................ Omaha, Nebr. E. H. Hatton, Secretary................Chicago, 111. 2 to 5 p. m. “ Statistical Study of Caries of the Permanent and Deciduous Teeth in Children” By J. T. Cohen.......... Minneapolis, Minn. “Prevention and Control of Dental Caries, an Institutional Study” By C. L. Drain...............Iowa City, Iowa “Eskimo and Indian Field Studies in Alaska and Canada on (a ) Dental Caries; ( b ) Facial and Dental Deformities; (c) Lowered Defense for Disease, and ( d ) the Nature and Route of the Defensive Factors Through Nutrition” By Weston A. Price....... Cleveland, Ohio “Psychology of Pain Control” By Elmer S. Best........ Minneapolis, Minn.
T he Journal of the American D ental Association WEDNESDAY, AUGUST 8 OPERATIVE DENTISTRY, MATERIA MEDICA AND THERAPEUTICS
ORAL SURGERY, EXODONTIA AND ANESTHESIA
(L in co ln H a ll A )
9 a. m. to 12 m. “Anesthetics and T h eir Side Actions” By B. H. H arm s.................... Omaha, Nebr. “Value of Physical Studies in the Diagnosis and Treatm ent of Lesions of the M outh” By Leroy M. S. M in er........ Boston, Mass. “Oral Lesions Due to Hypersensitiveness” By Virgil Loeb........................St. Louis, Mo.
9:30 to 12 ra. “Fixed Bridges Cast in One Piece” By W alter C. S h u ll.. . .Kansas City, Mo. Discussed by Edouard M. H a ll.........Kansas City, Mo. J. J. T ra v is....................Ann Arbor, Mich. Inlay Casting Technic Symposium “Simplified Inlay Casting” By Herbert D. Coy.......... Hamburg, Iowa “Controlled Casting” By D avid W . P hillips..........Chicago, 111. “Controlled Hygroscopic Expansion of the Investment to Compensate for Shrinkage” By C. H. Scheu....................Lakewood, Ohio
FULL DENTURE PROSTHESIS (Stem H a ll)
9 a. m. to 12 m. “Spherical Occlusion; A Logical Deduction” By C. W . Benson................Duluth, Minn. “Correction of Congenital Cleft Palate Speech by Appliances” By J. J. FitzG ibbon............Holyoke, Mass. “Roentgen-Ray Study of the Temporomandib ular Articulation” By Robert R. G illis............ Hammond, Ind. “Need of Research for Future Prosthetic Den tistry” By W alter J. P ryor........ Cleveland, Ohio
(A u d ito riu m T h eater)
O R TH O D O N TIA (L in coln H a ll B )
. 9 a. m. to 12 m. “Influence of Food upon the Jaw s of the American Eskimo” By L. M. W au g h ............... New York City “A Resume of Etiologic Factors in Malocclu sion” By W alter L. Hyde. .Minneapolis, Minn. “Normal Development Changes to Be Ex pected in the Face of the Growing Child” (Illustrated by Motion Pictures) By B. Holly Broadbent. .Cleveland, Ohio
PERIODONTIA (R a m se y H a ll A )
9 a.m. to 12 m. “A Method of T reating Periodontal Disease” By W . H. Scherer............ Houston, Texas “T he Individual Missing Tooth—Its 111 Effect on Dental and Periodontal Health” By Isador H irsch feld ... .New York City “Relationship of Dentistry to Medicine” By E dgar V. Allen (M .D .).................. ............................................ '.Rochester, Minn.
PARTIAL DENTURE PROSTHESIS (T h e a te r S ta g e)
M O U TH H YGIENE AND PREVENTIVE DENTISTRY
9 a. m. to 12 m.
(R a m se y H a ll B )
“Dental Cripples; the H igh Cost of Dental Service and the Relation of These Cases to the Dental Profession” By John S. D ohan........ Montreal, Canada “Arrangement of Teeth with Respect to Lever age (Balanced Occlusion)” By Rupert E. H a ll..................Chicago, 111. “Stabilization of Partial Dentures” By D avid W . McLean.Los Angeles, Calif. “Tests of a Few of the Newer Denture M a terials” By Ronald B arber. .. .W ashington, D. C.
9 a. m. to 12 m. “Conductive Anesthesia for Children” By Joseph B. Sherman.......... Chicago, 111. “Ethyl Chloride for Children” By L. N. E llsw orth.................................... ...................................... Salt Lake City, Utah “Dental Roentgenography for the Child P a tient” By W alter S. Thompson.......................... ..........................................Los Angeles, Calif. “Incipient Orthodontic Needs” By Henry F. Hoffman........ Denver, Colo.
1301
T h e St. Paul Session “Lessons to Be Learned in a Children’s Dental Clinic” By John O. M cC all......... New York City
HISTOLOGY, PHYSIOLOGY, PATHOL OGY, BACTERIOLOGY AND CHEM ISTRY (RESEARCH) (M e z za n in e F oyer)
9 a. m. to 12 ra. “Chemical Study of Human Saliva Indicating T h at Ammonia Is an Immunizing Factor in Dental Caries” ' By C. J. Grove C. T . G rove................St. Paul, Minn. “Dental Morphology and Pathology of PreSpanish Peru” By Rufus W. L e ig h .. .Fort Omaha, Nebr. “Postnatal Development and Calcification of Human Upper and Lower Anterior Per manent Teeth” By Rudolf K ronfeld.............. Chicago, 111. “Fungus Infection in the Oral Cavity” By T . A. H ard g ro v e.. .Fond du Lac, Wis.
OPERATIVE DENTISTRY, MATERIA MEDICA AND THERAPEUTICS (L in coln H a ll A )
2:30 to 5 p. m. “Applications of the Rubber Dam” By O. A. Anderson..............Seattle, Wash. “Use and Abuse of Synthetic Fillings” By M alvern Dumah H u ff.. .Atlanta, Ga. Discussed by R. C. Seibert........................ St. Louis, Mo. “Diet and Dental Caries” By Russell W . Bunting. Ann Arbor, Mich. Discussed by T. J. H ill........................... Cleveland, Ohio Edward H. H atton................ Chicago, 111.
FULL DENTURE PROSTHESIS (S tem H a ll)
2 to 5 p. m. “A re Anatomic Teeth Suited for Full Den tures?” By George P. P hillips............Boston, Mass. “Prosthodontist’s Interest in M ineralization and Demineralization of Bone” By Boyd S. G ardner. .. .Rochester, Minn. “Fundamental Principles in the Correction of Occlusal Disharmony, N atural or Artificial” By Clyde H. Schuyler... .New York City “Practical Bioengineering in Full Denture Construction” By A rthur P. L ittle............Richmond, Va.
PARTIAL DENTURE PROSTHESIS (T h e a te r S ta g e)
2 to 5 p. m. “Crown and Bridge Technic Showing Cor rective Cases of Subarthrosis and Dysar throsis by Repositioning of the Mandible” By T . V. M aves.............. Cleveland, Ohio “Food Identification” By A rthur L. W alters.......... Tulsa, Okla. “A Hop, a Skip and a Jum p” By Horace G. W hittlesey........................ ........................................ Mexico City, Mexico
ORAL SURGERY, EXODONTIA AND ANESTHESIA (A u d ito riu m T h e a te r)
2 to 5 p. m. “The Role of the Push-Back Operation in Cleft Palate Surgery” By G. M. Dorrance (M .D .).................... .............................................. Philadelphia, Pa. “Osteomyelitis of the Mandible” By Thomas Conner................Atlanta, Ga. “Regional Block Anesthesia; Certain Phases of Its Administration” By Howard C. M iller............Chicago, 111.
ORTHODO NTIA (Lincoln H a ll B )
2 to 5 p. m. “The Roentgenogram, a Guide in Children’s Dentistry” By L. R. M ain .................... St. Louis, Mo. “Im portant Diagnostic Considerations Prior to Orthodontic Treatm ent” By A. C. Rohde.............. Milwaukee ,Wis. “Children’s Dentistry in Relation to Prevention of Dental Anomalies” By George E. M organ. .Milwaukee, Wis.
PERIODONTIA (R am sey H a ll A )
2 to 5 p. m. “Periodontia Treatm ent for Maximum Reattachment” By H. J. Leonard.............. New York City “Surgical Eradication of Infected Paraden tium” By A. W . W a r d ... .San Francisco, Calif. “Subgingival Curettage in Periodontoclasia” By A rvah S. H op kin s... .G ulfport, Miss.
1302
T h e Journal of the American D ental Association
M O U TH HYGIENE AND PREVENTIVE DENTISTRY (R a m sey H a ll B )
2 to 5 p. m. “Preoperative and Postoperative Pedodontic Considerations” By John C. B rauer..............Lincoln, Nebr. “Treatm ent and Maintenance of Nonvital De ciduous T eeth” By Charles A. Sweet.’. .. .Oakland, Calif. “Extraction of Nonvital Deciduous T eeth” By Thomas R. Abbott. . .Milwaukee, Wis. “Resume of Papers on Nonvital Deciduous Teeth” By John E. G urley. .San Francisco, Calif. General Discussion
HISTOLOGY, PHYSIOLOGY, PATHOL OGY, BACTERIOLOGY AND CHEMISTRY (RESEARCH) (M e z za n in e F oyer)
2 to 5 p. m. “Development of Sclerosis of the Dentin” By Theodore B. B e u st... .Louisville, Ky. “Physiology of the Rat Incisor and Its Char acteristic Reaction to Certain Systemic Changes” By Isaac Schour......................Chicago, 111. Sherwood R. Steadm an.................... ....................................St. Paul, Minn. “Roentgen-Ray Densitometric Measurements of Chromophobic and Chromophilic Areas in Dentin” By G. Van Huysen..........Rochester, N. Y. “Studies of the Fusiform Organism” By Myron S. A isenberg.. .Baltimore, Md. “Inhibition of Lactobacillus Acidophilus by the Saliva” By O. W . Clough.......... Rochester, N. Y.
THURSDAY, AUGUST 9 OPERATIVE DENTISTRY, MATERIA MEDICA AND THERAPEUTICS (L in coln H a ll A )
9 a. m. to 12 m. Cooperative Dental Research between the Na tional Bureau of Standards and the Amer ican Dental Association “Zinc Phosphate Cements, Physical Properties and a Specification” By George C. Paffenbarger.................... .............................. Washington, D. C. W . T . Sw eeney.. .W ashington, D. C. “Physical Properties of Certified Amalgam Alloys (A Prelim inary Report on the Sili cate Cements)” By W illiam H. C raw ford.N ew York City
“Consideration of Some of the Fallacies Asso- ' ciated with the Administration of Local Anesthetics” By Edw ard R eiter............Cleveland, Ohio
FULL DENTURE PROSTHESIS (Stem H a ll)
9 a. m. to 12 m. “Comparative Values of Modern Denture M a terials” By J. B. H athorn. .W ichita Falls, Texas “A Simplified and Improved Full Denture Technic” * W ilfred H. T e rre ll........Pasadena, Calif. “Color in Relation to Denture Esthetics” By Elbert B. O w en..............St. Louis, Mo.
PARTIAL DENTURE PROSTHESIS (T h e a te r S tage)
9 a. m. to 12 m. “Partial Denture Construction and Its Relation to Preventive Dental Medicine” By M. Francis W ielage.........Miami, Fla. Symposium on Practical Partial Denture Prosthesis “Fixed P artial Dentures (Crown and B ridge)” By Stanley D. T ylm an..........Chicago, 111. “Removable P artial Dentures” By F. C. E lliott................Houston, Texas
ORAL SURGERY, EXODONTIA AND ANESTHESIA (A u d ito riu m T h eater)
9 a. m. to 12 m. “Foreign Bodies of Dental Origin in A ir and Food Passages” By D. G. G ardiner (M .D .)................ ..........................................St. Paul, Minn. “Elective Localization and Cataphoresis of Streptococci” By E. C. Rosenow......... Rochester, Minn. “Fractures of the Jaw s” By C. W . W aldron. .Minneapolis, Minn.
ORTH O DO N TIA *) 9 a. m. to 12 m. “Simplicity in Orthodontic Mechanisms with Special Emphasis on the Round Labial Arch” By C. W. Koch..............Little Rock, Ark. “Lingual Arch W ire; Observations on Its Scope and Status as an Orthodontic Mech anism” By B. G. D eV ries... .Minneapolis, M inn. (L in coln H a ll B )
T he St. Perni Session “Rationalizing Angle-Simon Methods” By Richard Lowy.............. Newark, N. J. P E R IO D O N T IA (R a m sey H a ll A ) 9 a. m. to 12 m. “Periodontia as Based on Facts, Not Fads in Practice” By Hunter S. A lle n ... .Birmingham, Ala. “Story of the Origin and Development of Periodontoclasia” By T . B. H a rtz e ll... .Minneapolis, Minn. “Constructive Treatm ent of Diseased Perio dontal Tissues” By T . Sydney Smith. San Francisco, Calif.
M O U T H H Y G IE N E , A N D PR EV EN TIV E D E N T IS T R Y (R a m se y H a ll B ) 9 a. m. to 12 m. “Restorative Dentistry for the Child” By Floyde Eddy Hogeboom.................... ..........................................Los Angeles, Calif.
1303
H IST O L O G Y , P H Y SIO L O G Y , P A T H O L OG Y , B A C TER IO LO G Y A ND C H E M ISTR Y (RESEA RCH ) (M e z za n in e F oyer)
9 a. m. to 12 m. “Periapical Osteofibrosis w ith Cementum For mation and Fibrosis of Teeth” By Edw ard C. Stafn e.. Rochester, Minn. “Historical Review of the Research Activities of Organized Dentistry” By Homer C. B row n. . . . Columbus, Ohio “Hydrogen Ion Concentration ( p s ) of Den tifrices, Before and A fter Addition of Saliva” By H. L. Hansen (P h.D .). . . Chicago, 111. L. S. Fosdick (P h .D .). . . .Chicago, 111. “Relation of Certain Aciduric Bacteria and Certain Food Qualities to Dental Caries” By Don C. Lyons................ Jackson, Mich. “Occlusion as Applied to Denture Work” By F. S. M eyer............ Minneapolis, Minn.
GENERAL CLINIC PROGRAM T H U R S D A Y A N D F R ID A Y A FTER N O O N S , A U G U S T 9-10 G R O U P I : COLLEGE CLINICS University of Illinois “Full Denture Impressions” W illiam J. H ogan................Chicago, 111. “Porcelain Inlay Technic” M argot U lloa............................Chicago, 111. “Anatomy and Treatment of Root Canals in Therapeutic Procedures” Edward W ach ..........................Chicago, 111. University of Pittsburgh, School of Dentistry “General Anesthesia for Dental Surgery” (Il lustrated Clinic Lecture) W . H arry A rcher................ Pittsburgh, Pa. “Some Phases of Exodontia and Anesthesia” W. Paul W alker..................Pittsburgh, Pa. Medical College of V irginia, School of Dentistry “Fixed Crown and Bridge Prosthesis” Paul L. C h e v a lie r................Richmond, Va. M arquette University College of Dentistry “Pathologic Processes Incident to T raum a of Surgery” C. R. Bodenbach..........Milwaukee, Wis.
G R O U P 2: SE C T IO N CLINICS Operative Dentistry, M ateria Medica and Therapeutics “Fixed Bridges Cast in One Piece” W . C. Shull...................... Kansas City, Mo. “Inlay Castings, Using Controlled Hygro scopic Expansion of the Investment to Com pensate for Shrinkage” C. H. Scheu......................Lakewood, Ohio “M aster Casts for Occlusal Reconstruction and Bite Coordination” (Illustrated by Motion Pictures) E. E. Bailey............................ Denver, Colo. “Practical Application of Modernized Amal gam Technic” W illiam E. H a rp e r.................. Chicago, 111. “Inlay Technic” L. P. W ag ner...................... W aupaca, Wis. “Spring Lock System of Dental Restoration” F. G. N eurohr.................. New York City “M ineral Supplementation and Therapeutics to Control Caries and Pyorrhea; Post extraction Pain Control” M. Francis W ielage................Miami, Fla.
T he Journal of the American D ental Association
THE SCIENTIFIC SECTIONS T U E SD A Y , A U G U S T 7 O PER A TIV E D E N T IS T R Y , M A T ER IA M ED IC A A N D T H E R A P E U T IC S (L in coln H a ll A , St. P a u l A u d ito riu m . A ll su bsequ en t m eetin g s ’w ill be h eld in th is room .)
OFFICERS OF SECTION John C. Lupton, C h airm an .. .Cleveland, Ohio E. Bruce Clark, Vice C hairm an.................... ..................................................Uniontown, Pa. Ralph R. Byrnes, Secretary.......... Atlanta, Ga. 2:30 to 5 p.m . “Value of Routine Radiodontic Examinations” By Clarence O. Sim pson... .St. Louis, Mo. Discussed by Vern D. Irw in ....................Duluth, Minn. Louis M. C ruttenden........ St. Paul, Minn. “Rationalization of Dental Therapeutics and M ateria Medica” By U. Garfield Rickert.Ann Arbor,.Mich. Discussed by Samuel M. G ordon................. Chicago, 111. J. R. Blayney........................... Chicago, 111. “Present Trends in Operative Procedure and T heir Possible Influence on Dental Educa tion” By A rthur T . Rowe..........New York City FULL D E N T U R E PR O ST H ESIS (Stem H a ll, S t. P a u l A u d ito riu m . A l l su bse qu en t m eetin g s w i l l be h eld in th is room .)
OFFICERS OF SECTION Bert L. Hooper, C hairm an........ Lincoln, Nebr. Harold L. H arris, Vice C hairm an................ ..................................................St. Paul, Minn. W alter H. W right, Secretary........................ ..............................................Wilkinsburg, Pa. 2 to 5 p. m. “Problem of Establishing Centric Relation; Its Importance and Solution” By I. Lester F urnas......... Cleveland, Ohio “Immediate Duplicate Denture Service” By Fred D. M iller................Altoona, Pa. “Surgical Problems as an Aid to More Effi cient Service with Prosthetic Dentures” By V. H. K azanjian............... Boston, Mass.
“Practical Occlusion as Applied to Full Den ture Construction” By John B. L aD ue..................Chicago, 111. PA R T IA L D EN T U R E PR O ST H ESIS (T h e a te r sta g e , S t. P a u l A u d ito riu m . A l l su b sequent m eetin gs w i ll be h eld in th is room .)
OFFICERS OF SECTION Ralph C. Cooley, C h airm an .. .Houston, Texas Theodore W . Maves, Vice C hairm an.......... ................................................ Cleveland, Ohio Herbert E. King, Secretary........ Omaha, Nebr. 2 to 5 p. m. “Some T hings W e Should Not Do” By George Wood Clapp. .New York City “M anipulation of Dental Porcelain” By E. Bruce C lark........... Uniontown, Pa. “The Embrasure-Saddle C lasp; Its Principle and Design” By M. M. De V an........... Philadelphia, Pa. O RA L SURGERY, E X O D O N T IA A N D A N E ST H E SIA (A u d ito riu m T h eater. A l l subsequ en t m eet in gs w i l l be h eld in this room .)
OFFICERS OF SECTION Frank W . Rounds, C h airm an .. .Boston, Mass. H arry Bear, Vice C h airm an .. .Richmond, Va. E. W . Browning, Secretary.......................... ...................................... Salt Lake City, Utah 2 to 5 p. m. “Exodontia Relevant to the General Prac titioner” By A. P. W illiam s............Louisville, Ky. “Removal of the M andibular T h ird M olar” By George B. W in ter..........St. Louis, Mo. O R T H O D O N T IA (L in coln H a ll B , St. P a u l A u d ito riu m . A ll subsequ en t m eetin gs w i ll be h eld in th is room .)
OFFICERS OF SECTION H enry F. Hoffman, Chairm an. .Denver, Colo. O. W. Brandhorst, Vice Chairm an.............. ....................................................St. Louis, Mo. Joseph E. Johnson, Secretary. .Louisville, Ky.
1299
T h e S t. P a u l Session 2 to 5 p. m.
“ Trend of Orthodontics” By Abram Hoffman............ Chicago, 111. “ Complete Records: The Unseen Director in Orthodontic Practice” By P. J. Murphy................ Dallas, Texas “Economic Advantages to the General Prac titioner from an Altruistic Concept of Or thodontics” By R. H. Miller................ St. Louis, Mo.
M O U T H H Y G IE N E A N D PR EV E N T IV E D E N T IS T R Y (R a m se y H a ll B , St. P a u l A u d ito r iu m . A l l su bsequ en t m eetin gs ’w ill be h eld in th is room .)
OFFICERS OF SECTION Walter C. McBride, Chairman.Detroit, Mich. L. W. Morrey, Vice Chairman.. .Chicago, 111. Ernest A. Branch, Secretary.. .Raleigh, N. C. 2:30 to 5 p. m. Public Health Symposium “ State Public Health Program” By N. Talley Ballou....... Richmond, Va. Richard C. Leonard. .Baltimore, Md. “ City Health Program” By E. H. Jones...............Cincinnati, Ohio “ Community Health Program” By Emory W. Morris.Battle Creek, Mich. “Dental Health Education” By C. J. Hollister............ Harrisburg, Pa. H IS T O L O G Y , PH Y SIO L O G Y , P A T H O L O GY, B A C TER IO LO G Y , A N D C H E M ISTR Y (R E SEA R C H ) ( M e z za n in e F oyer, St. P a u l A u d ito riu m . A l l su bsequ en t m eetin gs w i l l be h eld in th is room .)
OFFICERS OF SECTION Paul C. Kitchin, Chairman. .Columbus, Ohio Lake and woods near St. Paul. P E R IO D O N T IA (R a m sey H a ll A , St. P a u l A u d ito r iu m . A l l su bsequ en t m eetin g s 'w ill be h eld in th is room .)
OFFICERS OF SECTION M. Monte Bettman, Chairman. .Portland, Ore. Grace Rogers Spalding, Vice Chairman.. . . ...................................... Birmingham, Mich. Walter Leabo, Secretary........... Shreveport, La. 2:30 to 5 p. m. “Importance of the Early Recognition and Treatment of Periodontoclasia” By Robert L. Dement........... Atlanta, Ga. “A Program for Postgraduate Instruction in Periodontia” By Arthur H. Merritt....... New York City “ Subgingival Treatment in Oral Surgery” By A. B. Vastine.............. Bloomsburg, Pa.
Rufus W. Leigh, Vice Chairman................. ................................................ Omaha, Nebr. E. H. Hatton, Secretary................Chicago, 111. 2 to 5 p. m. “ Statistical Study of Caries of the Permanent and Deciduous Teeth in Children” By J. T. Cohen.......... Minneapolis, Minn. “Prevention and Control of Dental Caries, an Institutional Study” By C. L. Drain...............Iowa City, Iowa “Eskimo and Indian Field Studies in Alaska and Canada on (a ) Dental Caries; ( b ) Facial and Dental Deformities; (c) Lowered Defense for Disease, and ( d ) the Nature and Route of the Defensive Factors Through Nutrition” By Weston A. Price....... Cleveland, Ohio “Psychology of Pain Control” By Elmer S. Best........ Minneapolis, Minn.
T he Journal of the American D ental Association WEDNESDAY, AUGUST 8 OPERATIVE DENTISTRY, MATERIA MEDICA AND THERAPEUTICS
ORAL SURGERY, EXODONTIA AND ANESTHESIA
(L in co ln H a ll A )
9 a. m. to 12 m. “Anesthetics and T h eir Side Actions” By B. H. H arm s.................... Omaha, Nebr. “Value of Physical Studies in the Diagnosis and Treatm ent of Lesions of the M outh” By Leroy M. S. M in er........ Boston, Mass. “Oral Lesions Due to Hypersensitiveness” By Virgil Loeb........................St. Louis, Mo.
9:30 to 12 ra. “Fixed Bridges Cast in One Piece” By W alter C. S h u ll.. . .Kansas City, Mo. Discussed by Edouard M. H a ll.........Kansas City, Mo. J. J. T ra v is....................Ann Arbor, Mich. Inlay Casting Technic Symposium “Simplified Inlay Casting” By Herbert D. Coy.......... Hamburg, Iowa “Controlled Casting” By D avid W . P hillips..........Chicago, 111. “Controlled Hygroscopic Expansion of the Investment to Compensate for Shrinkage” By C. H. Scheu....................Lakewood, Ohio
FULL DENTURE PROSTHESIS (Stem H a ll)
9 a. m. to 12 m. “Spherical Occlusion; A Logical Deduction” By C. W . Benson................Duluth, Minn. “Correction of Congenital Cleft Palate Speech by Appliances” By J. J. FitzG ibbon............Holyoke, Mass. “Roentgen-Ray Study of the Temporomandib ular Articulation” By Robert R. G illis............ Hammond, Ind. “Need of Research for Future Prosthetic Den tistry” By W alter J. P ryor........ Cleveland, Ohio
(A u d ito riu m T h eater)
O R TH O D O N TIA (L in coln H a ll B )
. 9 a. m. to 12 m. “Influence of Food upon the Jaw s of the American Eskimo” By L. M. W au g h ............... New York City “A Resume of Etiologic Factors in Malocclu sion” By W alter L. Hyde. .Minneapolis, Minn. “Normal Development Changes to Be Ex pected in the Face of the Growing Child” (Illustrated by Motion Pictures) By B. Holly Broadbent. .Cleveland, Ohio
PERIODONTIA (R a m se y H a ll A )
9 a.m. to 12 m. “A Method of T reating Periodontal Disease” By W . H. Scherer............ Houston, Texas “T he Individual Missing Tooth—Its 111 Effect on Dental and Periodontal Health” By Isador H irsch feld ... .New York City “Relationship of Dentistry to Medicine” By E dgar V. Allen (M .D .).................. ............................................ '.Rochester, Minn.
PARTIAL DENTURE PROSTHESIS (T h e a te r S ta g e)
M O U TH H YGIENE AND PREVENTIVE DENTISTRY
9 a. m. to 12 m.
(R a m se y H a ll B )
“Dental Cripples; the H igh Cost of Dental Service and the Relation of These Cases to the Dental Profession” By John S. D ohan........ Montreal, Canada “Arrangement of Teeth with Respect to Lever age (Balanced Occlusion)” By Rupert E. H a ll..................Chicago, 111. “Stabilization of Partial Dentures” By D avid W . McLean.Los Angeles, Calif. “Tests of a Few of the Newer Denture M a terials” By Ronald B arber. .. .W ashington, D. C.
9 a. m. to 12 m. “Conductive Anesthesia for Children” By Joseph B. Sherman.......... Chicago, 111. “Ethyl Chloride for Children” By L. N. E llsw orth.................................... ...................................... Salt Lake City, Utah “Dental Roentgenography for the Child P a tient” By W alter S. Thompson.......................... ..........................................Los Angeles, Calif. “Incipient Orthodontic Needs” By Henry F. Hoffman........ Denver, Colo.
1301
T h e St. Paul Session “Lessons to Be Learned in a Children’s Dental Clinic” By John O. M cC all......... New York City
HISTOLOGY, PHYSIOLOGY, PATHOL OGY, BACTERIOLOGY AND CHEM ISTRY (RESEARCH) (M e z za n in e F oyer)
9 a. m. to 12 ra. “Chemical Study of Human Saliva Indicating T h at Ammonia Is an Immunizing Factor in Dental Caries” ' By C. J. Grove C. T . G rove................St. Paul, Minn. “Dental Morphology and Pathology of PreSpanish Peru” By Rufus W. L e ig h .. .Fort Omaha, Nebr. “Postnatal Development and Calcification of Human Upper and Lower Anterior Per manent Teeth” By Rudolf K ronfeld.............. Chicago, 111. “Fungus Infection in the Oral Cavity” By T . A. H ard g ro v e.. .Fond du Lac, Wis.
OPERATIVE DENTISTRY, MATERIA MEDICA AND THERAPEUTICS (L in coln H a ll A )
2:30 to 5 p. m. “Applications of the Rubber Dam” By O. A. Anderson..............Seattle, Wash. “Use and Abuse of Synthetic Fillings” By M alvern Dumah H u ff.. .Atlanta, Ga. Discussed by R. C. Seibert........................ St. Louis, Mo. “Diet and Dental Caries” By Russell W . Bunting. Ann Arbor, Mich. Discussed by T. J. H ill........................... Cleveland, Ohio Edward H. H atton................ Chicago, 111.
FULL DENTURE PROSTHESIS (S tem H a ll)
2 to 5 p. m. “A re Anatomic Teeth Suited for Full Den tures?” By George P. P hillips............Boston, Mass. “Prosthodontist’s Interest in M ineralization and Demineralization of Bone” By Boyd S. G ardner. .. .Rochester, Minn. “Fundamental Principles in the Correction of Occlusal Disharmony, N atural or Artificial” By Clyde H. Schuyler... .New York City “Practical Bioengineering in Full Denture Construction” By A rthur P. L ittle............Richmond, Va.
PARTIAL DENTURE PROSTHESIS (T h e a te r S ta g e)
2 to 5 p. m. “Crown and Bridge Technic Showing Cor rective Cases of Subarthrosis and Dysar throsis by Repositioning of the Mandible” By T . V. M aves.............. Cleveland, Ohio “Food Identification” By A rthur L. W alters.......... Tulsa, Okla. “A Hop, a Skip and a Jum p” By Horace G. W hittlesey........................ ........................................ Mexico City, Mexico
ORAL SURGERY, EXODONTIA AND ANESTHESIA (A u d ito riu m T h e a te r)
2 to 5 p. m. “The Role of the Push-Back Operation in Cleft Palate Surgery” By G. M. Dorrance (M .D .).................... .............................................. Philadelphia, Pa. “Osteomyelitis of the Mandible” By Thomas Conner................Atlanta, Ga. “Regional Block Anesthesia; Certain Phases of Its Administration” By Howard C. M iller............Chicago, 111.
ORTHODO NTIA (Lincoln H a ll B )
2 to 5 p. m. “The Roentgenogram, a Guide in Children’s Dentistry” By L. R. M ain .................... St. Louis, Mo. “Im portant Diagnostic Considerations Prior to Orthodontic Treatm ent” By A. C. Rohde.............. Milwaukee ,Wis. “Children’s Dentistry in Relation to Prevention of Dental Anomalies” By George E. M organ. .Milwaukee, Wis.
PERIODONTIA (R am sey H a ll A )
2 to 5 p. m. “Periodontia Treatm ent for Maximum Reattachment” By H. J. Leonard.............. New York City “Surgical Eradication of Infected Paraden tium” By A. W . W a r d ... .San Francisco, Calif. “Subgingival Curettage in Periodontoclasia” By A rvah S. H op kin s... .G ulfport, Miss.
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T h e Journal of the American D ental Association
M O U TH HYGIENE AND PREVENTIVE DENTISTRY (R a m sey H a ll B )
2 to 5 p. m. “Preoperative and Postoperative Pedodontic Considerations” By John C. B rauer..............Lincoln, Nebr. “Treatm ent and Maintenance of Nonvital De ciduous T eeth” By Charles A. Sweet.’. .. .Oakland, Calif. “Extraction of Nonvital Deciduous T eeth” By Thomas R. Abbott. . .Milwaukee, Wis. “Resume of Papers on Nonvital Deciduous Teeth” By John E. G urley. .San Francisco, Calif. General Discussion
HISTOLOGY, PHYSIOLOGY, PATHOL OGY, BACTERIOLOGY AND CHEMISTRY (RESEARCH) (M e z za n in e F oyer)
2 to 5 p. m. “Development of Sclerosis of the Dentin” By Theodore B. B e u st... .Louisville, Ky. “Physiology of the Rat Incisor and Its Char acteristic Reaction to Certain Systemic Changes” By Isaac Schour......................Chicago, 111. Sherwood R. Steadm an.................... ....................................St. Paul, Minn. “Roentgen-Ray Densitometric Measurements of Chromophobic and Chromophilic Areas in Dentin” By G. Van Huysen..........Rochester, N. Y. “Studies of the Fusiform Organism” By Myron S. A isenberg.. .Baltimore, Md. “Inhibition of Lactobacillus Acidophilus by the Saliva” By O. W . Clough.......... Rochester, N. Y.
THURSDAY, AUGUST 9 OPERATIVE DENTISTRY, MATERIA MEDICA AND THERAPEUTICS (L in coln H a ll A )
9 a. m. to 12 m. Cooperative Dental Research between the Na tional Bureau of Standards and the Amer ican Dental Association “Zinc Phosphate Cements, Physical Properties and a Specification” By George C. Paffenbarger.................... .............................. Washington, D. C. W . T . Sw eeney.. .W ashington, D. C. “Physical Properties of Certified Amalgam Alloys (A Prelim inary Report on the Sili cate Cements)” By W illiam H. C raw ford.N ew York City
“Consideration of Some of the Fallacies Asso- ' ciated with the Administration of Local Anesthetics” By Edw ard R eiter............Cleveland, Ohio
FULL DENTURE PROSTHESIS (Stem H a ll)
9 a. m. to 12 m. “Comparative Values of Modern Denture M a terials” By J. B. H athorn. .W ichita Falls, Texas “A Simplified and Improved Full Denture Technic” * W ilfred H. T e rre ll........Pasadena, Calif. “Color in Relation to Denture Esthetics” By Elbert B. O w en..............St. Louis, Mo.
PARTIAL DENTURE PROSTHESIS (T h e a te r S tage)
9 a. m. to 12 m. “Partial Denture Construction and Its Relation to Preventive Dental Medicine” By M. Francis W ielage.........Miami, Fla. Symposium on Practical Partial Denture Prosthesis “Fixed P artial Dentures (Crown and B ridge)” By Stanley D. T ylm an..........Chicago, 111. “Removable P artial Dentures” By F. C. E lliott................Houston, Texas
ORAL SURGERY, EXODONTIA AND ANESTHESIA (A u d ito riu m T h eater)
9 a. m. to 12 m. “Foreign Bodies of Dental Origin in A ir and Food Passages” By D. G. G ardiner (M .D .)................ ..........................................St. Paul, Minn. “Elective Localization and Cataphoresis of Streptococci” By E. C. Rosenow......... Rochester, Minn. “Fractures of the Jaw s” By C. W . W aldron. .Minneapolis, Minn.
ORTH O DO N TIA *) 9 a. m. to 12 m. “Simplicity in Orthodontic Mechanisms with Special Emphasis on the Round Labial Arch” By C. W. Koch..............Little Rock, Ark. “Lingual Arch W ire; Observations on Its Scope and Status as an Orthodontic Mech anism” By B. G. D eV ries... .Minneapolis, M inn. (L in coln H a ll B )
T he St. Perni Session “Rationalizing Angle-Simon Methods” By Richard Lowy.............. Newark, N. J. P E R IO D O N T IA (R a m sey H a ll A ) 9 a. m. to 12 m. “Periodontia as Based on Facts, Not Fads in Practice” By Hunter S. A lle n ... .Birmingham, Ala. “Story of the Origin and Development of Periodontoclasia” By T . B. H a rtz e ll... .Minneapolis, Minn. “Constructive Treatm ent of Diseased Perio dontal Tissues” By T . Sydney Smith. San Francisco, Calif.
M O U T H H Y G IE N E , A N D PR EV EN TIV E D E N T IS T R Y (R a m se y H a ll B ) 9 a. m. to 12 m. “Restorative Dentistry for the Child” By Floyde Eddy Hogeboom.................... ..........................................Los Angeles, Calif.
1303
H IST O L O G Y , P H Y SIO L O G Y , P A T H O L OG Y , B A C TER IO LO G Y A ND C H E M ISTR Y (RESEA RCH ) (M e z za n in e F oyer)
9 a. m. to 12 m. “Periapical Osteofibrosis w ith Cementum For mation and Fibrosis of Teeth” By Edw ard C. Stafn e.. Rochester, Minn. “Historical Review of the Research Activities of Organized Dentistry” By Homer C. B row n. . . . Columbus, Ohio “Hydrogen Ion Concentration ( p s ) of Den tifrices, Before and A fter Addition of Saliva” By H. L. Hansen (P h.D .). . . Chicago, 111. L. S. Fosdick (P h .D .). . . .Chicago, 111. “Relation of Certain Aciduric Bacteria and Certain Food Qualities to Dental Caries” By Don C. Lyons................ Jackson, Mich. “Occlusion as Applied to Denture Work” By F. S. M eyer............ Minneapolis, Minn.
GENERAL CLINIC PROGRAM T H U R S D A Y A N D F R ID A Y A FTER N O O N S , A U G U S T 9-10 G R O U P I : COLLEGE CLINICS University of Illinois “Full Denture Impressions” W illiam J. H ogan................Chicago, 111. “Porcelain Inlay Technic” M argot U lloa............................Chicago, 111. “Anatomy and Treatment of Root Canals in Therapeutic Procedures” Edward W ach ..........................Chicago, 111. University of Pittsburgh, School of Dentistry “General Anesthesia for Dental Surgery” (Il lustrated Clinic Lecture) W . H arry A rcher................ Pittsburgh, Pa. “Some Phases of Exodontia and Anesthesia” W. Paul W alker..................Pittsburgh, Pa. Medical College of V irginia, School of Dentistry “Fixed Crown and Bridge Prosthesis” Paul L. C h e v a lie r................Richmond, Va. M arquette University College of Dentistry “Pathologic Processes Incident to T raum a of Surgery” C. R. Bodenbach..........Milwaukee, Wis.
G R O U P 2: SE C T IO N CLINICS Operative Dentistry, M ateria Medica and Therapeutics “Fixed Bridges Cast in One Piece” W . C. Shull...................... Kansas City, Mo. “Inlay Castings, Using Controlled Hygro scopic Expansion of the Investment to Com pensate for Shrinkage” C. H. Scheu......................Lakewood, Ohio “M aster Casts for Occlusal Reconstruction and Bite Coordination” (Illustrated by Motion Pictures) E. E. Bailey............................ Denver, Colo. “Practical Application of Modernized Amal gam Technic” W illiam E. H a rp e r.................. Chicago, 111. “Inlay Technic” L. P. W ag ner...................... W aupaca, Wis. “Spring Lock System of Dental Restoration” F. G. N eurohr.................. New York City “M ineral Supplementation and Therapeutics to Control Caries and Pyorrhea; Post extraction Pain Control” M. Francis W ielage................Miami, Fla.